667450080133 has 4 divisors (see below), whose sum is σ = 668086353900. Its totient is φ = 666813806368.

The previous prime is 667450080083. The next prime is 667450080139. The reversal of 667450080133 is 331080054766.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 309004797924 + 358445282209 = 555882^2 + 598703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667450080133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667450080133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667450080139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318135310 + ... + 318137407.

It is an arithmetic number, because the mean of its divisors is an integer number (167021588475).

Almost surely, 2^667450080133 is an apocalyptic number.

It is an amenable number.

667450080133 is a deficient number, since it is larger than the sum of its proper divisors (636273767).

667450080133 is a wasteful number, since it uses less digits than its factorization.

667450080133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636273766.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 667450080133 in words is "six hundred sixty-seven billion, four hundred fifty million, eighty thousand, one hundred thirty-three".